부산대학교 도서관

Compared with conventional synchronous generators, wind turbines are connected to power grid through converters. Active power response and grid frequency are decoupled. Wind turbines do not have the ability of active frequency support. With the rapid development of new energy power in China, wind power penetration continues to increase. New challenges of gird frequency stability occur. Virtual synchronous generator (VSG) Demonstration Project is built in Zhangbei Wind, Photovoltaic and Energy Storage Station by State Grid. Through the VSG technology reform of wind turbines, active frequency regulation ability is possessed. Reserve capacity and rotor inertia control technical routes of wind power virtual synchronous generator (WPVSG) are introduced. A field test method is presented. The method is based on analog frequency disturbance applied to the secondary side. Field test is conducted. The results show that WPVSG has ability of active frequency regulation support. Two kinds of control methods have their own characteristics.